Can someone help me find the measure of each numbered angles? Please help ASAP!

A. 157

B. Angles 1 &2 = 129

    Angle 3 =51

C. Angle 1 =132

    Angle 2 =48

    Angle 3=132

Step-by-step explanation:

The interior angles of polygons add to 360 degree.

For A, your equation looks like:

65+81+57+x=360

203+x=360

subtract 203 from each side

x=157

For B

Because the two sides are congruent, so are the corresponding angles.

So angle 3 is congruent to 51 and angles 1 and 2 will be congruent to each other.

51+51+2x=360

102+2x=360

subtract 102 from each side

2x=258

divide by 2 on each side

x=129

For C

Angle 3 forms a linear pair with 48, so together they must equal 180.

180-48=132.

Because all sides are congruent in the figure, the opposite angles are equal.

Angle 2 is congruent to 48 and Angle 1 is congruent to Angle 3 which we determined was 132.

132+132+48+48=360

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step-by-step explanation:

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225